class DefaultSummarizerValues:
    SUPPORTED_ALGORITHMS = (
            "textrank",
            "lexrank"
        )
    SUPPORTED_RATIOS = (
            "0",
            "0.1",
            "0.2",
            "0.3",
            "0.4",
            "0.5",
            "0.6",
            "0.7",
            "0.8",
            "0.9",
            "1"
        )
    DEFAULT_ALGORITHM = (
        "lexrank"
    )
